Topic 6- Survival and response Flashcards
1
Q
What must organisms do in order to survive in their changing enviroment (as they are dynamic)?
A
Must respond to changes
2
Q
They can only survive if they are successful at what 3 things?
A
-Find favourable living conditions
-Find food
-Avoid predation
3
Q
What does response require?
A
Detection via receptor cells
4
Q
What are 2 ways receptors respond to change?
A
-Nerve impulses
-Secretion of substances
5
Q
What is a coordinator
A
-Where recpetors send nerve impulses
-The brain or spinal cord
6
Q
From the coordinators, the impulse is conducted to the 1._____ effector that will produce the appropriate response
A
1.specific
7
Q
Why must responses be flexible?
A
so the organism can take control of the response and display much more complex behaviour if needed
